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(No Model.)

W. P. SHEPARD.

INGUBATOR.

No. 387,742. Patented Aug. 14, 1888.

/ llll/II/IIII1III ATTORNEYS.

UNITED STATES PATENT Oriana.

WILLIAllI PENN SHEPARD, OF FALL RIVER, MASSACHUSETTS, ASSIGNOR OFTI:lREE -FOURTHS TO MATTHEV C. YARWOOD, PARKER BORDEN, AND ROLAND G.BUFFINGTON, OF SAME PLACE.

INCUBATOR.

SPECIFICATION forming part of Letters Patent No. 387,74

2, dated August 14,1888.

Application filed December 30, 1887. Serial No. 259,365. (No model.)

To all whom it may concern.-

Be it known that I, XVILLTAM PENN SHEP- ARI), of Fall River, in thecounty of Bristol, State of Massachusetts, have invented a cer- 5 tainnew and useful Improvement in Incubators, of which the following is adescription sufficiently full, clear, and exact to enable any personskilled in the art or science to which said invention appertains to makeand use the same, reference being had to the accompanying drawings,forming part of this specification, in which- Figure l is a sideelevation of myimproved incubator; Fig. 2, a vertical longitudinal secr5tion of the same, and Fig. 3 a vertical transverse section. Fig. 4 is adetail plan of the Y connecting the two ends of the flat-bottom pipes.

Like letters and figures of reference indicate corresponding parts inthe different figures of the drawings.

My invention relates more especially to that class of incubators inwhich hot water is employed to maintain the heat in the hatchingehamber;and it consists in certain novel features, as hereinafter fully setforth and claimed, the object being to produce a simpler and moreeffective device of this character than is now in ordinary use.

The nature and operation of the improvement will be readily understoodby all conversant with such matters from the following explanation.

In the drawings, A represents the body or case of the incubator, whichis provided with the usual egg trays or slides, m, in its interior, anda hinged door, B, in its side, said door being locked by a clasp orcatch, 2).

The egg-trays :r are disposed within an inner case or chamber, 0, thewalls of which form, with the walls of the body A, the air-space orinsulating-chamber a, usual in incubators of this class.

Inclined or converging partitions o extend from the door B to an openingin the case 6, said door being provided with an inwardly projectingportion, as shown at m, which is so constructed as to tightly lit thespace between said partitions.

The top of the inner case, 0, consists of a hot-water tank, D, thebottom of which curves upward, as shown atfin Fig. 3, so that the heatfrom said tank will radiate toward the center of the case 0. A verticalpipe, Z), enters the tank D, passes upward through the body A, and isclosed by a screw-cap, d, said pipe serving as a supply-pipe, throughwhich the tank may be filled with water. Two flatpipes, 71, are disposedlongitudinally on the bottom of the case 0 and extend into theairchamber 2 at the rear end of said case, as shown in Fig. 2, wherethey are connected by a short cross-pipe, g, and by a vertical pipe i,leading upwardly therefrom, with the tank D, said pipes h forming theinduction-pipes of a boiler, H, hereinafter described. The pipes h alsoextend into the air'ehainber 2 at the front endof said case, anda branchpipe or Y,

9, connects their ends with the single pipe is in the well-known manner,as shown in detail in Fig. 4.

A conical boiler, H, is disposed outside the case A at the end oppositethe pipe 2, said boiler being supported in position by a pipe, it, oneend of which is connected with the induction-pipes h and the otherentering the bottom of the boiler, and by a pipe, Z, connected with thetank D and entering the boiler at the top, as best shown in Fig. 2, saidpipe Z forming the eduction-pipe of the boiler.

Alanip, P, by which the heat is imparted to the water in the boiler, isdisposed on an adjustable bracket, 1), on the body A, in such a positionthat the chimney of the lamp will stand under the center of the boiler.A coni- 8 5 cal or funnel-shaped jacket, q, is secured on the pipe landso arranged that it embraces or surrounds the boiler, leaving anopening, 15,- between it and said boiler, which forms an annular fluefor the heated air and also for the smoke and products of combustionfrom the lamp. A regulating device for regulating the flame of the lampis secured to the end of the case A, adjacent to said boiler.

In the use of my improvement the lamp P 5 on the stand 1) being lightedand adjusted under the boiler H, the water in the boiler will be heatedand pass through the eduction-pipe Z into the tank D, thence through thevertical pipe z, induction-pipes h, and pipe 70 into the boiler, to beagain reheated. The hot water in the tank D and said pipes furnishesheat for the eggs in the trays 00.

Having thus explained my invention, what I claim is 1. In an incubatorof the character described, the body A, having the door B, the case 0,provided with the tank D, having the filling pipe d, the pipes h,connected with said tank by the pipes g and i, the cone-shaped boiler H,the pipes Zk g, for connecting said boiler with the tank D and pipes h,the funnel-shaped jacket q, and lamp P, all being constructed, combined,and arranged to operate substantially as set forth. 7

2. In an incubator of the character described, the bodyA, case 0,disposed within said body, and provided with the tank D, having thecurved bottomf and filling-pipe d, the pipes h, disposed at the bottomof said body and connected with the tank D by the pipesgaud 1;, thetrays m, the conical boiler H, pi peslk g, connecting said boiler withsaid tank and the pipes h, the funnel-shaped jacket q, lamp P, andbracket 1), combined and arranged to operate substantially as described.

3. In an incubator of the character described, the body A, provided withthe door 13 and chamber 0, the trays or, disposed in said chamher, thetank D, provided with the fillingpipe I) and having the concavedbottom)", the pipes h, connected with the tank D by the pipes g and z,the conical boiler H, connected with the tank D by the pipe Z, and withthe pipes h by the pipes g and k, the conical jacket q for the boiler H,the lamp P, disposed beneath said boiler,and the bracket 1;,attached tothe body A, all combined and arranged to operate substantially asdescribed.

XVILLIAM PENN SHEPARD.

\Vitnesses:

O. M. SHAW, G. A. SHAW.

